INTEGRATED CIRCUITS
CBT3253
Dual 1-of-4 FET multiplexer/demultiplexer
Product data
2002 Nov 04
Philips
Semiconductors
Philips Semiconductors
Product data
Dual 1-of-4 FET multiplexer/demultiplexer
CBT3253
FEATURES
•
5
Ω
switch connection between two ports
•
TTL-compatible input levels
•
Minimal propagation delay through the switch
•
ESD protection exceeds 2000 V HBM per JESD22-A114,
200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101
PIN CONFIGURATION
1OE 1
S1 2
1B4 3
1B3 4
1B2 5
1B1 6
1A 7
GND 8
16 V
CC
15 2OE
14 S0
13 2B4
12 2B3
11 2B2
10 2B1
9
2A
•
Latch-up testing is done to JESDEC Standard JESD78 which
exceeds 100 mA
DESCRIPTION
The CBT3253 is a dual 1-of-4 high-speed TTL-compatible FET
multiplexer/demultiplexer. The low on resistance of the switch allows
inputs to be connected to outputs without adding propagation delay
or generating additional ground bounce noise.
1OE, 2OE, S0, and S1 select the appropriate B output for the
A-input data.
The CBT3251 is characterized for operation from –40 to +85°C.
SA00574
PIN DESCRIPTION
PIN NUMBER
1
2
3, 4, 5, 6
7
8
9
10, 11, 12, 13
14
15
16
SYMBOL
1OE
S1
1B[1–4]
1A
GND
2A
2B[1–4]
S0
2OE
V
CC
NAME AND FUNCTION
Output enable
Select-control input
B outputs
A input
Ground (0 V)
A input
Select-control input
Select-control input
Output enable
Positive supply voltage
ORDERING INFORMATION
PACKAGES
16-pin plastic SO
16-pin plastic SSOP
16-pin plastic SSOP (QSOP)
16-pin plastic TSSOP
TEMPERATURE RANGE
–40 to 85
°C
–40 to 85
°C
–40 to 85
°C
–40 to 85
°C
ORDER CODE
CBT3253D
CBT3253DB
CBT3253DS
CBT3253PW
TOPSIDE MARK
CBT3253D
CT3253
CBT3253
CBT3253
DWG NUMBER
SOT109-1
SOT338-1
SOT519-1
SOT403-1
Standard packing quantities and other packaging data is available at www.philipslogic.com/packaging.
2002 Nov 04
2
Philips Semiconductors
Product data
Dual 1-of-4 FET multiplexer/demultiplexer
CBT3253
LOGIC DIAGRAM (positive logic)
1A
7
SW
6
1B1
SW
5
1B2
SW
4
1B3
SW
9
2A
3
1B4
SW
10
2B1
SW
11
2B2
SW
12
2B3
SW
13
2B4
S0 14
S1 2
1OE
1
2OE 15
SA00593
FUNCTION TABLE
INPUTS
OE1
H
X
L
L
L
L
OE2
X
H
L
L
L
L
S1
X
X
L
L
H
H
S0
X
X
L
H
L
H
FUNCTION
Disconnect 1A
Disconnect 2A
1A to 1B1 and 2A to 2B1
1A to 1B2 and 2A to 2B2
1A to 1B3 and 2A to 2B3
1A to 1B4 and 2A to 2B4
2002 Nov 04
3
Philips Semiconductors
Product data
Dual 1-of-4 FET multiplexer/demultiplexer
CBT3253
ABSOLUTE MAXIMUM RATINGS
1
SYMBOL
V
CC
V
I
I
K
T
stg
PARAMETER
DC supply voltage
DC input voltage
2
Continuous channel current
Input clamp current
Storage temperature range
V
I/O
< 0
CONDITIONS
RATING
–0.5 to +7.0
–0.5 to +7.0
128
–50
–65 to +150
UNIT
V
V
mA
mA
°C
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
RECOMMENDED OPERATING CONDITIONS
SYMBOL
V
CC
V
IH
V
IL
T
amb
DC supply voltage
High-level input voltage
Low-level Input voltage
Operating free-air temperature range
PARAMETER
LIMITS
MIN
4.5
2
—
–40
MAX
5.5
—
0.8
+85
UNIT
V
V
V
°C
NOTE:
1. All unused control inputs of the device must be held at V
CC
or GND to ensure proper device operation.
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
V
IK
V
P
I
I
I
CC
∆I
CC
C
I
C
IO(OFF)
PARAMETER
Input clamp voltage
Pass voltage
Input leakage current
Quiescent supply current
Control inputs
2
Control pins
Power-off leakage current
A port
B port
V
CC
= 4.5 V
TEST CONDITIONS
V
CC
= 4.5 V; I
I
= –18 mA
V
I
= V
CC
= 5.5 V; I/O = –100
µA
V
CC
= 5 V; V
I
= 5.5 or GND
V
CC
= 5.5 V; I
O
= 0, V
I
= V
CC
or GND
V
CC
= 5.5 V, one input at 3.4 V,
other inputs at V
CC
or GND
V
I
= 3 V or 0
V
O
= 3 V or 0; OE = V
CC
V
O
= 3 V or 0; OE = V
CC
V
I
= 0 V; I
I
= 64 mA
r
on3
On-resistance
V
I
= 0 V; I
I
= 30 mA
V
I
= 2.4 V; I
I
= –15 mA
T
amb
= –40 to +85
°C
MIN
—
3.4
—
—
—
—
—
—
—
—
—
TYP
1
—
3.6
—
—
—
4.5
23.5
6.5
5
5
10
MAX
–1.2
3.9
±1
3
2.5
—
—
—
7
7
15
Ω
V
V
µA
µA
mA
pF
pF
UNIT
NOTES:
1. All typical values are at V
CC
= 5 V, T
amb
= 25
°C.
2. This is the increase in supply current for each input that is at the specified TTL voltage level rather than V
CC
or GND
3. Measured by the voltage drop between the A and the B terminals at the indicated current through the switch.
On-state resistance is determined by the lowest voltage of the two (A or B) terminals.
2002 Nov 04
4
Philips Semiconductors
Product data
Dual 1-of-4 FET multiplexer/demultiplexer
CBT3253
AC CHARACTERISTICS
T
amb
= –40 to +85
°C;
C
L
= 50 pF
LIMITS
SYMBOL
PARAMETER
FROM (INPUT)
A or B
S
S
OE
S
OE
TO
(OUTPUT)
B or A
A or B
A or B
A or B
V
CC
= +5.0 V
±0.5
V
MIN
t
pd
t
en
t
dis
Propagation delay
1
Output enable time
to High and Low level
Output disable time
from High and Low level
—
1.2
1.3
1.4
1.1
1.0
MAX
0.25
6.2
6.3
6.4
7.2
7
ns
ns
ns
UNIT
NOTE:
1. The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance,
when driven by an ideal voltage source (zero output impedance).
2002 Nov 04
5
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